Sole for rubber shoes.



S. W. BOUIIN.

SOLE FOI? RUBBER SHOES. APPLICATION FILED DEC. 4. I9I4.

Paented Feb. 6, 1917 LQ@ www/fm W mutt@ srnrnnn iconen, or rnovrnnnon, nnonn reiten-n.

sont ron nonnen vsnout.

pccicetion of.' Letters Patent.

Application led December t, will. Sera?. No. $75,526.

To all whom t may concern:

. Be it known that I, S'mrirnN W. Bourin,

e, citizen-of the United States, and resident of the city @of Providence, in the county of Providence and Stute of Rhode lsland,have

invented Vcertain new and useful ImprovementsfinfSoles for Rubber Shoes,.of which struction und increasing the wearing qualif ties. in this construction the outsole which l5 portion, is "forme of lone continuous homogeneous piece of stock, the-heel bese and stoy portions of the continuous outsole being approiiirnstely of one and theA saine thickness upd' both being preferably formed much thinnrthen the ordinary heel portion; A litt is subsequently .applied to the heel portion of thcisho'e or' a. quality diderent from that of the inst' or the outsole. 1 y

Among the .practical advantages of this construction are rst:-

Thot by forming the heel portion thin the heel stay may be formed integral therewith which permits this part to be turned .upsnd lapped around the lower portion of the yuplper about the heel, thereby reinforcing tisportion and lending to it greet strenlgjh"und increasing the Wearing quality of th1s `portion of the shoe which isof'psr ticuler udvanta 'e especially in ladies shoes having-heels o small sizes.

Secondz-'lhis -construction avoids the necessity of forming this stoy portion seperately and subsequently attaching the same about the heel thus reducing the cost, of construction.' f

Third :-'This integral construction greatly improves the appearance of the finished hoe and does not detract'from its graceful mes;`

Fourth zfBy forming thebase of the heel ortion thin a, lift .of'rubber of e quality subsequently ttached to the heel to lreceive the excess wearwhich this portion is'alweys' Called. `upon to withstnd a 'et' the ,Senio time the ett: ieliir'ig toI this bose portion doesA not excessively thicken vthe heel' comprisesthegorepert portion, the shankl N portion, *the heel fortiori and the heel stoy `getter than the rest ofthe outsole may be te dtrt from its ont @sporters but` rathenfgives' to theyssristhe l oppellrcincoof 'having itsoutsole formed of one continuous piece'.

this heel baseportion may be applied to on extra quality lift thereby producing e shoe otl greater wearing qualities with the some or less expense as produced by the old construction.

With these end other objects-in' View, the

invention consists of certain novel tentures of construction, is-Will be more .'tullyde scribed, and perticulzirly pointed out in. the appended claims.

ln the Ifrccornpzunying drawings:

vFigure is a.' side elevation oit shoe showing my improved outsole with the 'ecl .stay portion formed integral with the neel. Fig. 2 is a plan view of the outsole es cut from sheet stock with the heel stoy portion formed integral therewith.

Fig. B- is a sectional view of the outsole showing the relative thickness of the different portions thereof end showing the heel bose portion as recessed und Inode thinner than the shank portion.

Fig. 1lis a perspective view showing e. heel lift which is formed seperate from the outsole of e. better quality of materiel to be subsequently attached to the heel portion.

Fig. 5'- is e. sectional -vieu showing the lip formed et the 'forward edge or" the heel base portion.

Fig. 6- is the saine as Fig. heel lift attached.

In practice the Wearing life of e. rubber shoe is practically limited to the resisting quality of. the heel portion, as" this portion is called upon to receive by for the greuter percentage of the Wear. Then agin it is found, particularly in the construction' of ladies rubber boots and shoes having small sized heels, to be very necessary to provide nV heel stoy portion to prevent the sharp edge of the small leather heel from cutting 5 showing the through the sides of the rubber shoe. It is also found in the practical construction of this outsole, to be of considerable advantage to form this stoy portion integral with the heel portion.

, In carrying out my invention torni the., I orepart portion-10, the shank portion 11,

the heel bese portion 12 and-the heel stay `portion 13u11 of one integral continuous sind homogeneous pieceof mater-iol, but in such e construction it would be quite irn- -Fit'thz--The0 cost of the stock saved in Sil ' point.

stay portion integral with the heel portion I have reduced the thickness of the heel portion to substantially that of the stay portion or thinner thereby providing what might be termed a heel base portion and have attached to this thin base portion a lift 14 ofy a higher quality of rubber than the .rest of the outsole. rlhen again in order to, in a measure., cover up the joint-of union between the heel base and lift7 and .cause the whole when finished to present the appearance of one continuous homogeneous .outsole, I have formed a lip or raised edge 15 at the forward edge of the heel portion against which the forward edge of the lift sets, which latter edge is also beaded and slightly undercut at 1G to overlap this lip hns completely breaking' the joint at that Then again it is found in practice that this raised lip serves to etl'ectually protect the lift and prevent it from being broken from its fastening by being kicked or stubbed while in use.

By this construction it will be seen that I have obtained several distinct andv important adi'antages, among others being First :*Tl1at the stay portion is formed integral with the heel portion, which when folded up andlormed into position about the heel of the shoe, greatly strengthens the same over a construction in which the stay piece is formed separate and subsequently attached thereto, and this construction does not detract from the beauty or graceful lines of the shoe.

Then again by forming a thin heel base portion, an independent lift ot' better quality may be attached thereto, which will greatly improve the wearing hfeof theshoe and the cost saved in forming a'tlnn heel portion may be added to that ofthe lift thus increasing the wearing life of the shoe Withor clumsy, but will be in keeping With the rest of the shoe and not detract from its general appearance.

Third:-By the provision of a 4raised lip at the forward edge of the heel base and the over-lapping of the abutting edge of the lift at this point the joint is quite successfully hidden and the whole outsole has the appearance ot a one-piece homogeneous construction.

I claim:

1. An outsole for a rubber boot or slice, comprising a forepart portion7 a shank tion, a heel base portion and a heel stay portion, all made of a single continuous sheet of rubber compcund Without joint or seam, the heel and stay portions/being for'nied thinner than the forepart portion,and` a heel lift the outsole attached to said heel basepor-v tion.

2. An outsole for a rubber boot or shoe; comprlsing a forcpart portion, .a shank portion, a heel base portion and a heel stay por- V75 In testimony whereof I affix Iny-signa-gy,"

ture in presence oftwo4 .witnesses l STEPHEN-W. BOURN.

Witnesses:

lflowium E. BARLo'w, A'. ,.F. Maoiinnny;

of aquality different from Ythat of'70 thv heel ,base 30 

